68 static int __rpipe_get_descr(struct wahc *wa,  in __rpipe_get_descr()  argument
72 	struct device *dev = &wa->usb_iface->dev;  in __rpipe_get_descr()
78 		wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0),  in __rpipe_get_descr()
106 static int __rpipe_set_descr(struct wahc *wa,  in __rpipe_set_descr()  argument
110 	struct device *dev = &wa->usb_iface->dev;  in __rpipe_set_descr()
116 		wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),  in __rpipe_set_descr()
148 static unsigned rpipe_get_idx(struct wahc *wa, unsigned rpipe_idx)  in rpipe_get_idx()  argument
152 	spin_lock_irqsave(&wa->rpipe_lock, flags);  in rpipe_get_idx()
153 	rpipe_idx = find_next_zero_bit(wa->rpipe_bm, wa->rpipes, rpipe_idx);  in rpipe_get_idx()
154 	if (rpipe_idx < wa->rpipes)  in rpipe_get_idx()
155 		set_bit(rpipe_idx, wa->rpipe_bm);  in rpipe_get_idx()
156 	spin_unlock_irqrestore(&wa->rpipe_lock, flags);  in rpipe_get_idx()
161 static void rpipe_put_idx(struct wahc *wa, unsigned rpipe_idx)  in rpipe_put_idx()  argument
165 	spin_lock_irqsave(&wa->rpipe_lock, flags);  in rpipe_put_idx()
166 	clear_bit(rpipe_idx, wa->rpipe_bm);  in rpipe_put_idx()
167 	spin_unlock_irqrestore(&wa->rpipe_lock, flags);  in rpipe_put_idx()
177 	rpipe_put_idx(rpipe->wa, index);  in rpipe_destroy()
178 	wa_put(rpipe->wa);  in rpipe_destroy()
193 static int rpipe_get_idle(struct wa_rpipe **prpipe, struct wahc *wa, u8 crs,  in rpipe_get_idle()  argument
199 	struct device *dev = &wa->usb_iface->dev;  in rpipe_get_idle()
207 	for (rpipe_idx = 0; rpipe_idx < wa->rpipes; rpipe_idx++) {  in rpipe_get_idle()
208 		rpipe_idx = rpipe_get_idx(wa, rpipe_idx);  in rpipe_get_idle()
209 		if (rpipe_idx >= wa->rpipes)	/* no more pipes :( */  in rpipe_get_idle()
211 		result =  __rpipe_get_descr(wa, &rpipe->descr, rpipe_idx);  in rpipe_get_idle()
217 		rpipe_put_idx(wa, rpipe_idx);  in rpipe_get_idle()
224 	set_bit(rpipe_idx, wa->rpipe_bm);  in rpipe_get_idle()
225 	rpipe->wa = wa_get(wa);  in rpipe_get_idle()
230 static int __rpipe_reset(struct wahc *wa, unsigned index)  in __rpipe_reset()  argument
233 	struct device *dev = &wa->usb_iface->dev;  in __rpipe_reset()
236 		wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),  in __rpipe_reset()
313 static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,  in rpipe_aim()  argument
317 	struct device *dev = &wa->usb_iface->dev;  in rpipe_aim()
330 	__rpipe_reset(wa, le16_to_cpu(rpipe->descr.wRPipeIndex));  in rpipe_aim()
376 	rpipe->descr.bmRetryOptions = (wa->wusb->retry_count & 0xF);  in rpipe_aim()
379 	result = __rpipe_set_descr(wa, &rpipe->descr,  in rpipe_aim()
396 static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,  in rpipe_check_aim()  argument
401 	struct device *dev = &wa->usb_iface->dev;  in rpipe_check_aim()
437 int rpipe_get_by_ep(struct wahc *wa, struct usb_host_endpoint *ep,  in rpipe_get_by_ep()  argument
441 	struct device *dev = &wa->usb_iface->dev;  in rpipe_get_by_ep()
445 	mutex_lock(&wa->rpipe_mutex);  in rpipe_get_by_ep()
449 			result = rpipe_check_aim(rpipe, wa, ep, urb, gfp);  in rpipe_get_by_ep()
461 		result = rpipe_get_idle(&rpipe, wa, 1 << eptype, gfp);  in rpipe_get_by_ep()
464 		result = rpipe_aim(rpipe, wa, ep, urb, gfp);  in rpipe_get_by_ep()
477 	mutex_unlock(&wa->rpipe_mutex);  in rpipe_get_by_ep()
484 int wa_rpipes_create(struct wahc *wa)  in wa_rpipes_create()  argument
486 	wa->rpipes = le16_to_cpu(wa->wa_descr->wNumRPipes);  in wa_rpipes_create()
487 	wa->rpipe_bm = kzalloc(BITS_TO_LONGS(wa->rpipes)*sizeof(unsigned long),  in wa_rpipes_create()
489 	if (wa->rpipe_bm == NULL)  in wa_rpipes_create()
494 void wa_rpipes_destroy(struct wahc *wa)  in wa_rpipes_destroy()  argument
496 	struct device *dev = &wa->usb_iface->dev;  in wa_rpipes_destroy()
498 	if (!bitmap_empty(wa->rpipe_bm, wa->rpipes)) {  in wa_rpipes_destroy()
501 			wa->rpipes, wa->rpipe_bm);  in wa_rpipes_destroy()
503 	kfree(wa->rpipe_bm);  in wa_rpipes_destroy()
516 void rpipe_ep_disable(struct wahc *wa, struct usb_host_endpoint *ep)  in rpipe_ep_disable()  argument
520 	mutex_lock(&wa->rpipe_mutex);  in rpipe_ep_disable()
526 			wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),  in rpipe_ep_disable()
532 	mutex_unlock(&wa->rpipe_mutex);  in rpipe_ep_disable()
537 void rpipe_clear_feature_stalled(struct wahc *wa, struct usb_host_endpoint *ep)  in rpipe_clear_feature_stalled()  argument
541 	mutex_lock(&wa->rpipe_mutex);  in rpipe_clear_feature_stalled()
547 			wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),  in rpipe_clear_feature_stalled()
552 	mutex_unlock(&wa->rpipe_mutex);  in rpipe_clear_feature_stalled()